Interactions of discrete solitons with structural defects

R. Morandotti*, H. S. Eisenberg, D. Mandelik, Y. Silberberg, D. Modotto, M. Sorel, C. R. Stanley, J. S. Aitchison

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

80 Scopus citations


We investigated the interaction of discrete solitons with defect states fabricated in arrays of coupled waveguides. We achieved attractive and repulsive defects by decreasing and increasing, respectively, the spacing of one pair of waveguides in an otherwise uniform array. Linear and nonlinear propagation in the same samples show distinctly different properties. The role of the Peierls-Nabarro potential in the interaction of the soliton with the defect is discussed.

Original languageAmerican English
Pages (from-to)834-836
Number of pages3
JournalOptics Letters
Issue number10
StatePublished - 15 May 2003
Externally publishedYes


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